Plugging assembly for rapidly sealing beam body prestress grouting anchor head

Abstract

The utility model discloses a plugging assembly used for rapidly sealing a beam body prestress grouting anchor head, which comprises an inner plugging piece, an outer plugging piece, an outer plugging piece, an outer plugging piece and an inner plugging piece, and is characterized in that one end of the inner plugging piece is a sealed end, and the other end of the inner plugging piece is an open end sleeved on the anchor head; the outer plugging piece is arranged on the inner plugging piece in a sleeving manner; and the fastening piece is arranged on the outer plugging piece in a sleeving mode to enable the outer plugging piece and the inner plugging piece to be screwed and connected into a whole, and the fastening piece is used for plugging the anchor head. The plugging assembly is simple in structure, reasonable in design and convenient to assemble, disassemble and operate, the plugging assembly can be highly attached to the anchor head, leakproofness of the anchor head is guaranteed, the grouting effect is enhanced, working efficiency is improved, the plugging assembly is easy to disassemble, recyclable, cost-saving, safe and reliable, and meanwhile the plugging assembly can be used for effectively improving the grouting effect. The construction waiting time can be greatly shortened, the construction quality of the precast beam body is enhanced, and the economic efficiency and the construction efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a plugging component, specifically a plugging component for quickly sealing the prestressed grouting anchor head of a beam body. It is mainly a device for quickly and tightly sealing the anchor head during grouting after prestressed tensioning of the beam body. Specifically, the device is installed and fastened to plug the anchor head to meet the requirements of quick and tight plugging, and belongs to the technical field of auxiliary supplies for prestressed construction of highway precast beams. Background Art

[0002] Generally speaking, in mountain highway and urban viaduct projects, bridge projects are common. According to the design preferences of each design unit and the limitations of the terrain, the superstructure of bridge projects is generally precast prestressed beams. The advantages of precast beam bridges compared to cast-in-situ beam bridges are: precast beams are usually precast in the precast beam yard and then transported to the site for installation. Compared with cast-in-situ beams, it reduces the risk of scaffold projects. Centralized precasting is more conducive to standardized construction, mechanized steel bar production, standardized installation, can be intelligently sprayed for maintenance, is convenient for workers to operate, and is conducive to ensuring quality technical indicators; centralized management eliminates external interference, is convenient for coordination, is conducive to process connection, and improves efficiency; it is convenient to implement noise and dust reduction measures, has less impact on the environment, and ensures people's physical health. Water supply and power supply are easily guaranteed, and material reserves are centralized to ensure the smooth progress of construction.

[0003] Similarly, there are corresponding technical standards for the tensioning and grouting of precast beam slabs. To ensure the quality of the beam body and reduce the stress loss caused by failure to grout in time after the steel strand is tensioned, it is necessary to grout as soon as possible after the steel strand is tensioned.

[0004] Currently, as Figure 6 shown, in previous construction, mortar was usually used to plug the anchor head after tensioning. After the mortar reached a certain strength, the duct was grouted, and the waiting time was relatively long. At the same time, the mixing ratio of the plugging mortar should be strictly controlled, and the technical requirements for the plugging operators are relatively high. If the plugging is not tight, it will lead to unsatisfactory grouting effect, which is not only time-consuming and laborious but also wastes materials.

[0005] Therefore, the key to solving the above technical problems is to develop a plugging component for quickly sealing the prestressed grouting anchor head of the beam body with strong practicability and high working reliability. Summary of the Invention

[0006] In view of the many defects and deficiencies existing in the traditional methods in the above-mentioned background technology, the present utility model has made an innovative design, aiming to provide a plugging assembly with a simple structure, reasonable design, convenient installation, disassembly and operation. This plugging assembly can fit well with the anchor head to ensure its tightness, enhance the grouting effect, improve the work efficiency, and the device is easy to remove, recyclable, cost-saving, safe and reliable. At the same time, by using the present utility model, the construction waiting time can be significantly reduced, the construction quality of the precast beam body can be enhanced, and the economic efficiency and construction efficiency can be improved.

[0007] To solve the above problems and achieve the above invention purpose, a plugging assembly for rapid sealing of the prestressed grouting anchor head of a beam body in the present utility model is realized by adopting the following design structure and the following technical solutions:

[0008] As an improvement of a plugging assembly for rapid sealing of the prestressed grouting anchor head of a beam body in the present utility model,

[0009] It includes:

[0010] An inner plugging member (1), one end of the inner plugging member (1) is a closed end, and the other end is an open end, and the open end is sleeved on the anchor head (4);

[0011] An outer plugging member (2), the outer plugging member (2) is sleeved on the inner plugging member (1);

[0012] A fastening member (3), the fastening member (3) is sleeved on the outer plugging member (2) to screw the outer plugging member (2) and the inner plugging member (1) tightly into a whole, for realizing the plugging of the anchor head (4).

[0013] As an improvement of the above of the present utility model, the whole of the inner plugging member (1) is a cylindrical member with a hollow interior, one end being a closed end and the other end being an open end.

[0014] As a further improvement of the above of the present utility model, the inner diameter of the inner plugging member (1) is slightly larger than the outer diameter of the anchor head (4).

[0015] As a further further improvement of the above of the present utility model, the inner plugging member (1) is an elastic member made of an elastic rubber material.

[0016] As a further further improvement of the above of the present utility model, one end of the outer plugging member (2) is an operation section (21), and the outer wall of the operation section (21) is provided with an external thread section or threads;

[0017] The other end of the outer plugging member (2) is a working section (22), and a plurality of cuts (221) are provided at the end of the working section (22) along the direction of the operation section (21), and the working section (22) has a taper.

[0018] As a further improvement of the above-mentioned utility model, the operation section (21) is a columnar body, and the inside of the columnar body is a smooth structure;

[0019] The incision (221) is a V-shaped structure.

[0020] As a further improvement of the above-mentioned utility model, the operation section (21) and the working section (22) are integrally formed.

[0021] As a further improvement of the above-mentioned utility model, the fastener (3) is an ordinary nut, and the ordinary nut is screwed and installed in the middle of the outer plugging member (2) to play a fastening and limiting role.

[0022] As a further improvement of the above-mentioned utility model, the inner plugging member (1), the outer plugging member (2) and the fastener (3) are sleeved and installed in sequence from the inside to the outside to form a whole, constituting a plugging assembly.

[0023] As a further improvement of the above-mentioned utility model, an injection layer, an anti-rust layer, a waterproof layer and a warning layer are sequentially arranged on the outer surfaces of the inner plugging member (1), the outer plugging member (2) and the fastener (3) from the inside to the outside, and fluorescent powder is coated on the warning layer.

[0024] The working principle is as follows: Before using a plugging assembly for quickly closing the prestressed grouting anchor head of a beam body with the above-mentioned design structure, it is necessary to transport the already manufactured plugging assembly to the designated construction position by manual or corresponding handling equipment for installation and waiting for use.

[0025] Before installation, the operator only needs to select a plugging assembly with the model size of the present utility model that matches the size of the precast beam and slab anchor head (4) to connect the anchor head (4) for installation.

[0026] During installation, after the prestressed steel strand of the precast beam body at the construction site is tensioned, taking the end of the prestressed steel strand extending out of the anchor head (4) as the length requirement, select a plugging assembly of the present utility model that matches the diameter size of the anchor head (4) for plugging.

[0027] During plugging, first clean the anchor head (4) and the externally remaining steel strands to meet the basic installation requirements, then gradually screw the inner plugging member (1) tightly against the anchor head (4). After ensuring no looseness, fit the working section of the outer plugging member (2) with the inner plugging member (1), and at the same time screw the fastener (3) upward until complete fastening is achieved, while ensuring that there are more than two threads reserved outside the working section of the outer plugging member (2) for backup tightening. Thus, the plugging work of the anchor head (4) is completed. After the plugging is completed, the subsequent construction process can be carried out.

[0028] During use, after the installation is completed and it is checked that each plugging component of the present utility model is installed stably, the grouting operation can be carried out on the duct according to the precast beam body grouting construction process.

[0029] Finally, after the grouting operation is completed, after the grout reaches final setting, the present utility model can be removed. When removing, the operator only needs to first loosen the fastener (3) installed on the outer plugging member (2), and then, hold the operation section of the outer plugging member (2) and remove the outer plugging member (2). Secondly, the operator can then remove the inner plugging member (1) from the anchor head (4). Finally, the operator cleans and repairs the three components of the inner plugging member (1), the outer plugging member (2) and the fastener (3) of the present utility model for use in plugging and grouting of the anchor head (4) of the same type and size next time.

[0030] The beneficial effects of the present utility model compared with the prior art are:

[0031] Therefore, it is necessary to develop a technical device with strong practicability and convenient operation to improve problems such as the long waiting time required for traditional mortar plugging of the anchor head, cumbersome operation, and high technical requirements for operators.

[0032] The beneficial effects of the present utility model compared with the prior art are:

[0033] 1. The present invention has a simple new structure, novel and reasonable design, is convenient to manufacture, has good stability during installation, and has strong sealing performance, thus ensuring the grouting effect of the beam body;

[0034] 2. The present utility model saves the time required for traditional mortar plugging of the anchor head and waiting for the mortar to reach a certain strength before grouting on the one hand, and on the other hand, by grouting and plugging in this way, the stress loss of the steel strand caused by the long waiting time after tensioning is greatly reduced;

[0035] 3. Each component of the present utility model is convenient to install and simple to operate, can replace traditional construction mortar plugging, greatly saves labor costs and material consumption, saves time and effort, and significantly improves work efficiency;

[0036] 4. Compared with the traditional construction method, the present utility model is convenient to install and disassemble, and can be reused repeatedly, greatly saving costs;

[0037] 5. The present utility model can improve the tightness of the anchor head plugging, is beneficial to the quality of vacuum grouting, saves the waiting time required for traditional mortar sealing of the anchor head before grouting when the mortar reaches a certain strength, shortens the free time after steel strand tensioning, controls stress loss, fully ensures the quality on the basis of time saving and cost saving, and improves the durability of the beam slab in use;

[0038] 6. Since the present utility model adopts the fastener (3), it can ensure the stability of the outer plugging member (2) and the connection section of the anchor head. Through the fastening effect of the fastener (3), the inner plugging member (2) fits tightly and airtightly with the anchor head (4) to achieve a better plugging effect, playing a role in tightness and ensuring no slurry leakage and loosening displacement during the grouting process.

[0039] 7. Since the inner plugging member (1) is an elastic member made of elastic rubber material, during use, the installation of the inner plugging member (1) on the anchor head (4) can be achieved quickly and easily, and it can be stably, conveniently and reliably connected to the anchor head (4) of the present utility model. When the inner plugging member (1) fits and plugs the anchor head (1), it has appropriate elasticity to tightly hoop on the anchor head (4), and the inner plugging member (1) has a good fastening effect when combined with the outer plugging member (2).

[0040] 8. Since a number of incisions are provided at the end of the working section (22) of the present utility model in the direction of the operation section (21), and the working section (22) has a taper, the friction coefficient can be increased, so that it is more tightly connected to the inner plugging member (1), and it can play a role in protecting the inner plugging member (1).

[0041] 9. The exterior of the present utility model is coated with an anti-rust layer and a waterproof layer, so it can prevent rust and extend the service life of the entire plugging assembly, achieving environmental protection and saving resources at the same time. Meanwhile, a self-luminous fluorescent material is coated on the exterior of the plugging assembly, which can clearly mark the position of the plugging assembly at night, in a dark room or in an underground construction environment, effectively playing a role in safety warning, improving visibility, being easy for people to distinguish, and increasing safety in construction and daily life. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The following further details the specific embodiments of the present utility model with reference to the drawings, where:

[0043] Figure 1 is one of the schematic diagrams of the use state of the present utility model;

[0044] Figure 2 is Figure 1 the partial enlarged structural schematic diagram of the position A shown;

[0045] Figure 3 is the second schematic diagram of the use state of the present utility model;

[0046] Figure 4 is one of the overall structural schematic diagrams of the outer plugging member (2) component of the present utility model;

[0047] Figure 5It is the second overall structural schematic diagram of the outer plugging member (2) component of the present utility model;

[0048] Figure 6 It is the exploded structural schematic diagram of the usage state of the present utility model;

[0049] Among them, the reference numerals in the figure: 1 - inner plugging member;

[0050] 2 - outer plugging member, 21 - operation section, 22 - working section, 221 - incision;

[0051] 3 - fastener;

[0052] 4 - anchor head. Specific embodiments

[0053] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the technical solutions of the present utility model will be further described in detail below in conjunction with the attached drawings and specific embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and embodiments.

[0054] As Figures 1 to 6 shown, a plugging assembly for quickly sealing the prestressed grouting anchor head of a beam body includes:

[0055] Inner plugging member 1, one end of the inner plugging member 1 is a closed end, and the other end is an open end, and the open end is sleeved on the anchor head 4;

[0056] Outer plugging member 2, the outer plugging member 2 is sleeved on the inner plugging member 1;

[0057] Fastener 3, the fastener 3 is sleeved on the outer plugging member 2 to screw the outer plugging member 2 and the inner plugging member 1 tightly into a whole, for realizing the plugging of the anchor head 4.

[0058] Furthermore, the inner plugging member 1 is an overall cylindrical member with a hollow interior, one end being a closed end and the other end being an open end.

[0059] Furthermore, the inner diameter of the inner plugging member 1 is slightly larger than the outer diameter of the anchor head 4.

[0060] Furthermore, the inner plugging member 1 is an elastic member made of elastic rubber material.

[0061] In the present utility model, since the inner plugging member 1 is an elastic member made of elastic rubber material, during the use process, the installation of the inner plugging member 1 on the anchor head 4 can be realized relatively quickly and easily, and a firm, convenient and reliable connection with the anchor head 4 of the present utility model can be achieved.

[0062] Meanwhile, in the present utility model, when the inner plugging member 1 fits and plugs the anchor head 4, it has appropriate elasticity to tightly hoop on the anchor head 4, and the inner plugging member 1 has a good fastening effect when combined with the outer plugging member 2. The size of the inner plugging member 1 can be correspondingly shaped and manufactured according to the size of the anchor head 4 specifically used.

[0063] Furthermore, as Figure 2 and Figure 5 shown, one end of the outer plugging member 2 is an operation section 21, and the outer wall of the operation section 21 is provided with an external thread section or thread teeth;

[0064] The other end of the outer plugging member 2 is a working section 22. A plurality of cutouts 221 are formed at the end of the working section 22 along the direction of the operation section 21, and the working section 22 has a taper.

[0065] In the present utility model, since a plurality of cutouts are formed at the end of the working section 22 in the direction of the operation section 21, and the working section 22 has a taper, therefore, the friction coefficient can be increased, so that it is more firmly connected with the inner plugging member 1, and it can play a role in protecting the inner plugging member 1.

[0066] Specifically, as Figure 4 shown, the operation section 21 is a columnar body, and the inside of the columnar body is a smooth structure;

[0067] The cutout 221 is a V-shaped structure.

[0068] Specifically, as Figure 4 and Figure 5 shown, the operation section 21 and the working section 22 are an integrally formed structure.

[0069] Furthermore, the fastener 3 is an ordinary nut, and the ordinary nut is screwed and installed in the middle of the outer plugging member 2 to play a fastening and limiting role.

[0070] Specifically, the fastener 3 adopts a flat head nut or a hexagonal nut.

[0071] In the present utility model, the fastener 3 is used for the stability of the connection section between the outer plugging member 2 and the anchor head, and at the same time plays a role in tightness, ensuring no slurry leakage and loosening displacement during the grouting process.

[0072] Meanwhile, the fastener 3 is used in combination with the outer plugging member 2. Through the fastening effect of the fastener 3, the inner plugging member 2 is firmly and tightly attached to the anchor head 4 to achieve a good plugging effect.

[0073] Furthermore, the three components of the inner plugging member 1, the outer plugging member 2 and the fastener 3 are sleeved and installed in sequence from the inside to the outside and connected as a whole to form a plugging assembly.

[0074] Furthermore, on the outer surfaces of the inner plugging member 1, the outer plugging member 2, and the fastener 3, an injection layer, an anti-rust layer, a waterproof layer, and a warning layer are sequentially arranged from the inside to the outside. The warning layer is coated with fluorescent powder.

[0075] In the present utility model, a high molecular wear-resistant material is injection-molded on the injection layer; the anti-rust layer includes an epoxy zinc-rich primer, a chlorinated rubber topcoat, and an epoxy mica iron intermediate coat located between the epoxy zinc-rich primer and the chlorinated rubber topcoat; the waterproof layer is a polyurethane waterproof coating; the warning layer is a single-color or multi-color mixed reflective warning tape, reflective color film, or reflective paint.

[0076] Meanwhile, in the present utility model, the connections referred to are all fixed connections, movable connections, or detachable connections. Among them, the fixed connection is a welded connection or directly processed into an integral forming structure; the movable connection, detachable connection, or split structure is a hinged connection, internal and external thread connection, bayonet connection, plug-in socket connection, bolt assembly connection, or screw connection.

[0077] In summary, a more specific implementation manner of the present utility model is as follows:

[0078] Before using a plugging assembly for quickly closing the prestressed grouting anchor head of a beam body with the above-described design structure, it is necessary to transport the already fabricated plugging assembly to the designated construction position by manual or corresponding handling equipment for installation and waiting for use.

[0079] Before installation, the operator only needs to select a plugging assembly with the model size of the present utility model that matches the size of the precast beam slab anchor head 4 to connect the anchor head 4 for installation.

[0080] During installation, after the prestressed steel strand of the precast beam body at the construction site is tensioned, with the end of the prestressed steel strand extending out of the anchor head 4 as the length requirement, a plugging assembly of the present utility model that matches the diameter size of the anchor head 4 is selected for plugging.

[0081] During plugging, first clean the anchor head 4 and the externally remaining steel strand to meet the basic installation requirements. Then gradually screw the inner plugging member 1 tightly against and around the anchor head 4. After ensuring no looseness, fit the working section of the outer plugging member 2 with the inner plugging member 1. At the same time, screw the fastener 3 upward until a completely tightened effect is achieved, and ensure that there are more than two threads reserved outside the working section of the outer plugging member 2 for backup tightening. Thus, the plugging work of this anchor head 4 is completed. After the plugging is completed, the subsequent construction procedures can be carried out.

[0082] During use, after checking that each plugging assembly of the present utility model is installed firmly after installation, the grouting operation can be carried out on the duct according to the grouting construction process of the precast beam body.

[0083] After the final grouting operation is completed, the present utility model can be removed only after the grout reaches final setting. When removing, the operator only needs to first loosen the fastener 3 installed on the outer plugging member 2, and then hold the operation section of the outer plugging member 2 to remove the outer plugging member 2. Secondly, the operator can then remove the inner plugging member 1 from the anchor head 4. Finally, the operator cleans and repairs the three components of the inner plugging member 1, the outer plugging member 2 and the fastener 3 of the present utility model for use in grouting and plugging of the anchor head 4 of the same type and size next time.

[0084] Finally, it should be noted that the specific embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can still be made to it.

Claims

1. A plugging component for rapid sealing of the prestressed grouting anchor head of a beam body, characterized in that, Including: An inner plugging member (1), one end of the inner plugging member (1) is a closed end, and the other end is an open end, and the open end is sleeved on the anchor head (4); An outer plugging member (2), the outer plugging member (2) is sleeved on the inner plugging member (1); A fastener (3), the fastener (3) is sleeved on the outer plugging member (2) to screw the outer plugging member (2) and the inner plugging member (1) tightly into an integral body for plugging the anchor head (4).

2. The plugging assembly for quickly sealing the prestressed grouting anchor head of the beam body according to claim 1, characterized in that, The inner plugging member (1) is an overall hollow cylindrical member with one end being a closed end and the other end being an open end.

3. The plugging assembly for rapid sealing of the prestressed grouting anchor head of the beam body according to claim 1 or 2, characterized in that, The inner diameter of the inner plugging member (1) is slightly larger than the outer diameter of the anchor head (4).

4. A plugging assembly for rapid sealing of the prestressed grouting anchor head of a beam body according to claim 1, characterized in that, The inner plugging member (1) is an elastic member made of an elastic rubber material.

5. A plugging assembly for quickly sealing the prestressed grouting anchor head of a beam body according to claim 1, characterized in that, One end of the outer plugging member (2) is an operation section (21), and the outer wall of the operation section (21) is provided with an external thread section or thread teeth; The other end of the outer plugging member (2) is a working section (22), and a plurality of cuts (221) are formed at the end of the working section (22) along the direction of the operation section (21), and the working section (22) has a taper.

6. The plugging assembly for quickly sealing the prestressed grouting anchor head of the beam body according to claim 5, characterized in that, The operation section (21) is a columnar body, and the inside of the columnar body is a smooth structure; The cut (221) is a V-shaped structure.

7. A plugging assembly for rapid sealing of a prestressed grouting anchor head of a beam body according to claim 5, characterized in that, The operation section (21) and the working section (22) are of an integrally formed structure.

8. A plugging assembly for quickly sealing the prestressed grouting anchor head of a beam body according to claim 1, characterized in that, The fastener (3) is an ordinary nut, and the ordinary nut is screwed and installed in the middle of the outer plugging member (2) to play a fastening and limiting role.

9. A plugging assembly for quickly sealing the prestressed grouting anchor head of a beam body according to claim 1, characterized in that The three components of the inner plugging member (1), the outer plugging member (2) and the fastener (3) are sleeved and installed in sequence from the inside to the outside and connected into an integral body to form a plugging assembly.

10. The plugging assembly for quickly sealing the prestressed grouting anchor head of the beam body according to claim 1, wherein, An injection layer, an anti-rust layer, a waterproof layer and a warning layer are sequentially arranged on the outer surfaces of the inner plugging member (1), the outer plugging member (2) and the fastener (3) from the inside to the outside, and fluorescent powder is coated on the warning layer.

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